package me.tianxiaotu.demo.text;

public class Test1 {
    public static void main(String[] args) {
       boolean green=false;
       boolean red=false;
       boolean yellow=true;
       if(green) {
           System.out.println("绿灯行");
       }
       if(red) {
           System.out.println("红灯停");
       }
       if(yellow) {
           System.out.println("黄灯等一等");
       }
    }
}
